43461690 has 64 divisors (see below), whose sum is σ = 114048000. Its totient is φ = 10552320.

The previous prime is 43461689. The next prime is 43461703. The reversal of 43461690 is 9616434.

43461690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43461690² = 3777836995312200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14436 + ... + 17184.

It is an arithmetic number, because the mean of its divisors is an integer number (1782000).

Almost surely, 2^43461690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43461690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57024000).

43461690 is an abundant number, since it is smaller than the sum of its proper divisors (70586310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43461690 is a wasteful number, since it uses less digits than its factorization.

43461690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 43461690 is about 6592.5480658088. The cubic root of 43461690 is about 351.5892084993.

The spelling of 43461690 in words is "forty-three million, four hundred sixty-one thousand, six hundred ninety".